Improvement in fan-blowers



A. P. KINNEYD. E. PRAY.

Fan-Blowers,

N0.157,453. PatentedDec.8,187.

. I Witnesses; r Inventor;

T GRAPHIC CQ-PNO'TD-U'TkiigalPARK PLACE,NY

UNITED STATES PATENT CFFIOE.

AMOS P. KINNEY AND ONSVILLE E. PRAY, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN FAN-BLOWERS.

S ecification forming part of Letters Patent No. 157,453, dated December 8, 1874; application filed November 10, 1874.

To all whom it may concern Be it known that we, AMos P. KINNEY and ONSVILLE E. PRAY, of Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Fan-Blowers, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which our invention appertains to make and use the same, reference being had to the accompanying drawing, forming a part of this specification, in which Figure 1 is an isometrical perspective view, showing our improvement and Fig. 2,a view of the pipes and cross-chambers.

Our invention relates to that class of fanblowers intended for use in producing either a hot or cold blast; and consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, by which a simpler, cheaper, and more effective device of this character is produced than is now in ordinary use.

In the drawing, A represents the framework; B, the fan-shaft; O, the crank D, the

heads or sides of the case, and L the body of the same, which is provided with the port or mouth E G, having the slide or gate H, in the usual manner.

No novelty is claimed for these parts when in and of themselves considered. The body L is annular in shape, and has its edges fitted to slide in grooves F formed in the heads D in such a manner that the port E G may be adjusted or turned to any desired position without turning the heads or changing the position of the frame A. This feature of our invention obviates the necessity of short curves or turns in the air-pipe leading from the blower in the vicinity of the port.

Within the blower, immediately under the body L, and between the body and the outer ends of the fans 0 c, we place a heater or cooler, as the case may be, composed of two series of bent pipes, a a, one series arranged within the other, as shown. These pipes are not continuous, or do not extend entirely around the blower, but are in two sections and semicircular in form, their ends being coupled by steam-tight joints to the opposite sides of cross pipes or chambers z 2, (see Fig. 2,) at the top and bottom of the case, the upper chamber being provided with the inductionpipe I, and the lower chamber with the eduction or drip pipe, (represented by the dotted lines K,) extending outwardly through the case.

From the foregoing, the nature and operation of our invention will be readily obvious to all conversant with such matters.

In the use of our improved blower a hot or cold blast may be readily produced, as desired, by means of steam or ice-water let into the pipes or a, thus heating or cooling the air passed through the blower, as the case may be, and in a manner which will be apparent without a more explicit description.

When the apparatus is to be used for producing'a cold blast, a screw-cap or stop-cock may be fitted to the pipe K, which pipe will act as a vent until the air is expelled, and the pipes at a are filled with the cold water, when it may be closed, if preferred. It may also be closed in the same manner when the pipes are filled with steam, opening it, as occasion may require, to draw oil the water of condensation; or the water or steam may be allowed a free passage through the apparatus, if desired.

The sides D and body L are secured together by the nuts and cross-bolts J, which also serve to lock or fasten the port E G when turned as represented by the dotted lines M, or in any other desired position.

Having thus described our invention, what we claim is 1. A fan-blower provided with the pipes a a, constructed and arranged to operate, in producing a hot or cold blast, substantially as set forth.

2. In a fan-blower, the body L, provided with the port or mouth E G, and rendered adjustable in the heads D, substantially as and for the purpose specified.

AMOS P. KINNEY.

ONSVILLE E. PRAY. Witnesses:

0. A. SHAW, H. E. METOALF. 

